CN102809840B - Display device and variable lens array - Google Patents
Display device and variable lens array Download PDFInfo
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- CN102809840B CN102809840B CN201210164831.3A CN201210164831A CN102809840B CN 102809840 B CN102809840 B CN 102809840B CN 201210164831 A CN201210164831 A CN 201210164831A CN 102809840 B CN102809840 B CN 102809840B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
- G02B30/28—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays involving active lenticular arrays
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
- H04N13/305—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using lenticular lenses, e.g. arrangements of cylindrical lenses
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
- G02F1/133788—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by light irradiation, e.g. linearly polarised light photo-polymerisation
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
- G02F1/294—Variable focal length devices
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- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
Abstract
The present invention relates to display device and variable lens array.This display device includes: the display unit of display two dimensional image；And it is arranged as the variable lens array towards display unit, wherein, variable lens array includes the first substrate with transparent first public electrode, there is the second substrate of transparent second public electrode, and it is arranged between first substrate and second substrate and is formed the liquid crystal layer of liquid crystal lens row, treatment fluid crystal layer as follows: liquid crystal molecule is directed, when making to there is not potential difference between the first public electrode and the second public electrode, each liquid crystal lens row produce refractive power, and the refractive power that each liquid crystal lens of Control of Voltage of applying arranges between the first public electrode and the second public electrode.
Description
Technical field
It relates to variable lens array.The disclosure further relates to include the display device of this variable lens array.
Background technology
There is the display device of the multiple known image that can show multiple viewpoint, for instance, it is possible to there is the image of parallax for stereoscopic vision between display image.Example at the display device of the type carrying out commercial development is the combination of the display unit of lenticular lens or any other suitable lens arra and display two dimensional image.
Figure 17 A and 17B shows to be had by being arranged in the concept map of the operation of the display device of the lens arra that lens arrays is formed between display unit and image-watching person.
As shown in Figure 17 A, viewpoint 2 is arrived from one group of light of one group of pixel emission with reference character R1, R3, R5, R7 and R9 labelling.Similarly, as seen in this fig. 17b, viewpoint 1 is arrived from one group of light of one group of pixel emission with reference character L2, L4, L6, L8 and L10 labelling.Thus, in the position separating preset distance with display unit, the image at viewpoint 1 and the image at viewpoint 2 are watched independently.
When left eye and the right eye of image-watching person lay respectively at viewpoint 1 and 2, and when one group of pixel with reference character L2, L4, L6, L8 and L10 labelling and one group of pixel with reference character R1, R3, R5, R7 and R9 labelling show the image for left eye and the image for right eye respectively, image-watching person three-dimensionally identifies image.
On the other hand, this display device being preferably able to stereoscopic vision also is able to easily show normal image (two dimensional image).In other words, it is desirable to this display device is configured to carry out the switching of display pattern between stereo-picture display pattern and normal image display pattern.When the lens arrays of lens arra has variable refractive power, stereo-picture display pattern can be switched to normal image display pattern, and vice versa.
Such as, as shown in Fig. 2 of JP-A-7-72445, JP-A-7-72445 proposes the variable lens array of a kind of refractive power that can change each lens arrays.Variable lens array described in JP-A-7-72445 has following structure: liquid crystal layer is arranged between a pair transparency carrier each with transparency electrode.In the variable lens array with said structure, each lens arrays is formed (hereinafter sometimes called liquid crystal grin lens) by the gradient-index lens (gradientindexlens) made with liquid crystal material, and by changing the voltage between a pair substrate, it is possible to change the refractive power of lens arrays.
Summary of the invention
In variable lens array shown in Fig. 2 of JP-A-7-72445, in order to control the refractive index gradient in liquid crystal layer, for example, it is desired to the electrode at least one substrate to be divided into fine streaks electrode, and control to be applied to the voltage of each predetermined electrode group.Thus complete the configuration of lens and the control of voltage.
Accordingly, it is desired to provide the variable lens array of a kind of electrode not being divided, it has easy configuration and can control simply.It is also expected to provide a kind of display device including this variable lens array.
Embodiment of the present disclosure relates to a kind of display device, comprising:
The display unit of display two dimensional image；And
It is arranged as the variable lens array towards display unit,
Wherein, variable lens array includes having the first substrate of transparent first public electrode, have the second substrate of transparent second public electrode and be arranged between first substrate and second substrate and formed the liquid crystal layer of liquid crystal lens row,
Liquid crystal layer is processed in the following manner: liquid crystal molecule is directed so that when there is not potential difference between the first public electrode and the second public electrode, and each liquid crystal lens row produce refractive power, and
The refractive power of the Control of Voltage each liquid crystal lens row applied between the first public electrode and the second public electrode.
Another embodiment of the disclosure relates to a kind of variable lens array, comprising:
There is the first substrate of transparent first public electrode；There is the second substrate of transparent second public electrode；And the liquid crystal layer being arranged between first substrate and second substrate,
Wherein, liquid crystal layer is processed as follows: liquid crystal molecule is directed so that do not execute under alive state between the first public electrode and the second public electrode, and each liquid crystal lens row produce refractive power, and
The refractive power of the Control of Voltage each liquid crystal lens row applied between the first public electrode and the second public electrode.
The variable lens array according to disclosure embodiment or formed according in the variable lens array of the display device of disclosure embodiment, liquid crystal layer is processed in the following manner: liquid crystal molecule is directed, when making to there is not potential difference between the first public electrode and the second public electrode, each liquid crystal lens row produce refractive power.Therefore, it is not necessary to divide any electrode to the refractive index gradient controlling in liquid crystal layer, or control applied voltage based on electrode group.Such as, when applying identical voltage to the first public electrode and the second public electrode, variable lens array is used as lens pillar (lenticularlens).Additionally, when applying the potential difference of at least certain amplitude between the first public electrode and the second public electrode, variable lens array is essentially acted as simple transparency carrier.Can configure and control the variable lens array according to one of disclosure embodiment in a straightforward manner.
Accompanying drawing explanation
Fig. 1 is the schematic exploded perspective view of the display device used in the first embodiment；
Fig. 2 is the schematic plan view in variable lens array front；
Fig. 3 is the sectional view along the line A-A shown in Fig. 2；
Fig. 4 A to Fig. 4 C is the schematic, partial section view of first substrate and other assemblies and describes the method for manufacturing variable lens array；
Fig. 5 A to Fig. 5 C be the schematic, partial section view of second substrate and other assemblies and after describing the process shown in Fig. 4 C for the method manufacturing variable lens array；
Fig. 6 A be the schematic, partial section view of second substrate and other assemblies and after describing the process shown in Fig. 5 C for the method manufacturing variable lens array；Fig. 6 B be the schematic, partial section view of the first and second substrates and other assemblies and after describing the process shown in Fig. 6 A for the method manufacturing variable lens array；
Fig. 7 be the schematic, partial section view of the first and second substrates and other assemblies and after describing the process shown in Fig. 6 B for the method manufacturing variable lens array；
Fig. 8 is the schematic sectional view of a part of the display unit of the part of variable lens array and display stereo-picture；
Fig. 9 is the perspective schematic view of a part for the part of display unit and variable lens array；
Figure 10 is the schematic sectional view of a part for the part of the variable lens array showing normal image and display unit；
Figure 11 is the perspective schematic view of a part for the part of display unit and variable lens array；
Figure 12 is the schematic sectional view of the variable lens array according to variation；
Figure 13 is the schematic sectional view of a part for the part of the variable lens array in the second embodiment and display unit；
Figure 14 is the schematic sectional view of a part for the part of the variable lens array showing normal image and display unit；
Figure 15 is the schematic sectional view of a part for the part of the variable lens array in the 3rd embodiment and display unit；
Figure 16 describes the orientation of liquid crystal molecule, and is the schematic plan view of variable lens array in terms of the B-B direction shown in Figure 15；And
Figure 17 A and 17B shows the concept map of the operation of the display device with the lens arra being arranged between display unit and image-watching person.
Detailed description of the invention
Based on embodiment, the disclosure is described hereinafter with reference to accompanying drawing.The invention is not restricted to embodiment, and give the various numerical value in embodiment and material in an illustrative manner.In the following description, identical element or there is the identical reference number of element of identical function, and will no longer carry out redundancy description.To be described with following order.
1. according to display device and the whole description of variable lens array of disclosure embodiment
2. the first embodiment
3. the second embodiment
4. the 3rd embodiment (other)
[according to display device and the whole description of variable lens array of disclosure embodiment]
The variable lens array according to disclosure embodiment or in the display device according to disclosure embodiment use variable lens array in (hereinafter, these variable lens arrays are called the variable lens array according to disclosure embodiment sometimes for short), in order to eliminate the refractive power of (nullify) each liquid crystal lens row, voltage is applied so that the liquid crystal molecule in liquid crystal layer orients at fixed-direction between the first public electrode and the second public electrode.Additionally, due to when liquid crystal layer applies D/C voltage continuously, liquid crystal material is degenerated, and therefore, it can drive variable lens array as in typical liquid crystal display floater, makes the polarity of the voltage between the first public electrode and the second public electrode sequentially be inverted.
In the variable lens array with above-mentioned preferred disposition according to disclosure embodiment, oriented film is formed at the surface of the first substrate towards liquid crystal layer and towards at least one in the surface of the second substrate of liquid crystal layer, and liquid crystal molecule is oriented by oriented film by this way: when there is not potential difference between the first public electrode and the second public electrode, each liquid crystal lens row produce refractive power.In the case, irradiated by light and control the directional characteristic of oriented film.
Such as, when the thin film being made up of the macromolecule being bonded with photochemical reaction residue with illumination, the photochemical reaction in the molecule of optical propagation direction arrangement is different from the photochemical reaction in other molecules, causes the anisotropy of molecular orientation.Or, when irradiating, with linearly polarized photon, the thin film being made up of the macromolecule being bonded with photochemical reaction residue, occur along the restricted selective reaction of polarization axle, cause the anisotropy of molecular orientation.In view of the above-mentioned fact; when the oriented film being made up of macromolecular material with illumination; the directional characteristic of thin film can control by suitably arranging optical propagation direction; and when irradiating this thin film with linearly polarized photon, can control by being suitably used the mask controlling polarization axis direction or other suitable assemblies.Macromolecular material can be such as polyester, polyamide, polyimides or any other suitable known materials.
In the variable lens array with above-mentioned various preferred disposition according to disclosure embodiment forming optical lens, liquid crystal layer needs than the liquid crystal thickness in typical liquid crystal display floater much.Such as, the spherical distance piece being distributed between the substrates by setting, first substrate and second substrate could be arranged to spaced apart a predetermined distance, in order to liquid crystal layer keeps having predetermined thickness.But, in the case, the diameter of distance piece is not negligible relative to pixel separation, may cause the deterioration of picture quality.It is therefore preferred that the boundary between adjacent lcd lens arrays arranges wall-like or shaft-like distance piece, or the middle body arranged at each liquid crystal lens arranges wall-like or shaft-like distance piece.
In the case, although dependent on the directional process performed on liquid crystal layer and the composition of liquid crystal material making liquid crystal layer, but the position that the orientation of liquid crystal molecule that can be arranged in when the refractive power change that each liquid crystal lens arranges in liquid crystal layer of wall-like or shaft-like distance piece is constant.The situation of " orientation of liquid crystal molecule is constant " used herein not only includes the situation that the orientation of liquid crystal molecule is the most constant, also includes the situation that the orientation of liquid crystal molecule is basically unchanged.In above-mentioned configuration, the refractive index making the material of distance piece is set to appropriate value, prevents optical characteristics from changing because of distance piece.
When anticipated image-watching person can press the surface of the variable lens array in use, wall-like distance piece is preferably used for guaranteeing so-called surface resistance to pressure.Or, the quantity of the most shaft-like distance piece is sufficiently large guarantees enough surface resistance to pressures.Shaft-like distance piece need not have given shape, and for example, it is possible to there is rectangular rod or cylinder is shaft-like.
According in the variable lens array with above-mentioned various preferred disposition of disclosure embodiment, from guaranteeing to manufacture during variable lens array from the perspective of the mobility of liquid crystal material, the preferably peripheral part of the first and second substrates of variable lens array sealing member seals, and there is gap between each end and sealing member of wall-like or shaft-like distance piece.
The first and second substrates forming variable lens array can be made up of the material transparent to light.The material making the first and second substrates can be such as acrylic material, polycarbonate resin (PC), ABS resin, polymethyl methacrylate (PMMA), polyarylate resin (PAR), polyethylene terephthalate (PET) resin and glass.First and second substrates can be made up of identical material or material different from each other.
Each in the first public electrode on first substrate and the second public electrode on second substrate can be made up of the metallic film of transmission light, or is made up of tin indium oxide (ITO), indium zinc oxide (IZO) or other suitable transparent conductive materials.First and second public electrodes can be formed by using vacuum evaporation, sputtering or other physical vapor deposition (PVD) methods, various chemical vapor deposition (CVD) method or other suitable known methods.
The liquid crystal layer being arranged between first substrate and second substrate can be made up of nematic liquid crystal material or any other suitable known materials.Liquid crystal layer need not be made up of certain material, it is possible to is made up of positivity liquid crystal material or negative liquid crystal material.
Wall-like or shaft-like distance piece are required for ad hoc approach and are formed.The method forming distance piece can be such as silk screen printing or method based on heliosensitivity.Silk screen printing comprises the following steps: form opening in the screen portions of the part corresponding to formation distance piece, uses scraper plate to form material with the distance piece on permission screen and passes opening, forms distance piece and form the layer of material on substrate, and harden this layer if desired.Method based on heliosensitivity comprises the following steps: forms photosensitive distance piece on substrate and forms material layer, and by this layer of exposure the one patterned distance piece that develops are formed material layer.Distance piece can be made up of transparent polymer material or any other suitable known materials.
The sealing member sealing the interval between peripheral part and the peripheral part of second substrate of first substrate can be made up of thermosetting epoxy resin material or any other suitable known sealant material.
The display unit used in the display device according to disclosure embodiment can be display panels, electroluminescence display panel, Plasmia indicating panel or any other suitable known display floater.Display unit can show information monochromatic or coloredly.
In embodiment described below, use transmission single color LCD display floater as display unit.In the description of embodiment, variable lens array is arranged between display unit and image-watching person.Structure according to disclosure embodiment is not limited to said structure, or, variable lens array can be arranged between transmission display unit and Lighting Division.
Display panels is such as by including that the front panel of transparent common electrode, the rear board including transparent pixel electrode and the liquid crystal material being arranged between front panel and rear board are formed.Display panels need not operate with AD HOC.Display panels can be with so-called TN pattern, VA pattern or IPS mode activated.
The pixel quantity M of display unit × N represents with (M, N).The occurrence of (M, N) can be such as VGA(640,480), S-VGA(800,600), XGA(1024,768), APRC(1152,900), S-XGA(1280,1024), U-XGA(1600,1200), HD-TV(1920,1080) and Q-XGA(2048,1536), even (3840,2160), (1920,1035), (720,480), (1280,960), and for showing some other kinds of resolution of image, but it is not limited to this.
Known Lighting Division can be used to irradiate the back side of transparent display panel.Lighting Division need not configure in a specific way.Lighting Division can be formed by light source, prismatic lens, diffusion sheet, light guide plate and other known elements.
Drive the drive circuit of display unit and drive the drive circuit of variable lens array can be formed by various circuit.Each circuit such as can be formed by known circuit device.
Various conditions shown in this specification can be met completely or substantially.Inhomogeneities on allowing in various design or manufacturing.
[the first embodiment]
The first embodiment according to the disclosure relates to display device and variable lens array.
Fig. 1 is the schematic, exploded perspective view of the display device used in the first embodiment.
As it is shown in figure 1, display device 1 includes the display unit 10 showing two dimensional image and is arranged as the variable lens array 30 towards display unit 10.It is assumed for convenience of description that the viewing area 11 of display unit 10 is parallel to X-Z plane, and beholder watches image in+y side (viewing areas side).
Variable lens array 30 is arranged as the front (image-watching person side) towards display unit 10, and is kept part (not shown) and remains: variable lens array 30 is towards display unit 10, and has predetermined design distance therebetween.As described later herein, liquid crystal layer and miscellaneous part are arranged between the first substrate 130A of variable lens array 30 and second substrate 130B.Reference number 137 represents sealing member.Variable lens array 30 will describe in detail with reference to Fig. 2 that will be described later and 3 subsequently.
The Lighting Division 20 using up irradiation display unit 10 is arranged in the dorsal part of display unit 10.Lighting Division 20 is such as formed by light source, prismatic lens, diffusion sheet, light guide plate and other assembly (not shown).
The first polarizing coating (not shown) at Z-direction polarized light is bonded to the back side of display unit 10, and the second polarization mode (not shown) at X-direction polarized light is bonded to the front of display unit 10.Therefore the light propagated towards variable lens array 30 from viewing area 11 polarize in X-direction.
Pixel 12 arranges in the whole viewing area 11 of display unit 10, and specifically, M pixel 12 (X-direction in Fig. 1) in the horizontal direction arranges, and N number of pixel 12 arranges in vertical direction (Z-direction in Fig. 1).Along m(m=1,2 ..., M) pixel 12 that arranges is expressed as pixel 12m。
In variable lens array 30, P liquid crystal lens row (variable lens row) extended in vertical direction arranges in the horizontal direction.Pth (p=1,2 ..., P) individual liquid crystal lens row 31 are expressed as liquid crystal lens row 31p.The relation of above-mentioned " P " and " M " will be described later.
For ease of description it will be assumed that the number of views related to when watching the stereo-picture of display is four (is present in central authorities viewing areas WACFour viewpoints A1, A2..., A4) merely exemplary be described.Quantity and the quantity of viewpoint of viewing areas suitably can be set according to the design of display device 1.By suitably arranging the position relationship between display unit 10 and liquid crystal lens row 31, even if at central authorities viewing areas WACThe region WA of left and rightLWith region WARIn viewpoint, also can watch stereo-picture.
Drive circuit (not shown) drives display unit 10.Specifically, the orientation of liquid crystal molecule in each pixel 12 is controlled so that be shown according to the two dimensional image of outer video signal.Additionally, another drive circuit (not shown) drives variable lens array as follows: such as, in the case of display stereo-picture and in the case of display normal image, it is arranged differently than the refractive power of each liquid crystal lens row 31.The control of liquid crystal lens row 31 will describe in detail with reference to the Fig. 8 to 11 that will be described later subsequently.
The configuration of variable lens array 30 is described referring next to Fig. 2 and Fig. 3.
Fig. 2 is the schematic plan view in the front of variable lens array.In fig. 2, cut a part of first substrate 130A, to illustrate the part after first substrate 130A.Additionally, for convenience of description, in having cut the part of a part of first substrate 130A, liquid crystal layer and miscellaneous part are eliminated.Fig. 3 is the sectional view of the line A-A along Fig. 2.Fig. 3 also illustrate schematically the pixel corresponding to the liquid crystal lens row 31 shown in Fig. 3.
As it is shown on figure 3, variable lens array 30 includes having the first substrate 130A of transparent first public electrode 131, have the second substrate 130B of transparent second public electrode 136 and be arranged between first substrate 130A and second substrate 130B and formed the liquid crystal layer 133 of liquid crystal lens row 31.
First public electrode 131 is formed on the surface (inner surface) of the first substrate 130A towards liquid crystal layer 133, and the second public electrode 136 is formed on the surface (inner surface) of the second substrate 130B towards liquid crystal layer 133.Liquid crystal layer 133 is made up of positivity nematic liquid crystal material.
First public electrode 131 and the second public electrode 136 are made up of ITO or any other suitable transparent conductive material, and are formed by using known film to form technology.First public electrode 131 is formed on the whole surface of first substrate 130A, and the second public electrode 136 is formed on the whole surface of second substrate 130B.
As it is shown on figure 3, the first oriented film 132 is further formed on first substrate 130A, and cover the whole surface of the first public electrode 131, and the second oriented film 135 is further formed on second substrate 130B, and cover the whole surface of the second public electrode 136.Oriented film is such as made up of light-sensitive polyimide material, and is controlled the directional characteristic of oriented film by illumination.Oriented control and other relevant treatment will describe in detail with reference to Fig. 4 A to 4C that will be described later, Fig. 5 A to 5C, Fig. 6 A and 6B and Fig. 7 subsequently.
First oriented film 132 and the second oriented film 135 define the direction of the molecular axis of (under the state not applying electric field) when there is not potential difference between the first public electrode 131 and the second public electrode 136, liquid crystal molecule 133A.Liquid crystal molecule 133A in oriented film oriented liquid crystal layer 133 as follows: when there is not potential difference between the first public electrode 131 and the second public electrode 136, each liquid crystal lens row 31 produce refractive power.Fig. 3 shows when there is not potential difference between the first public electrode 131 and the second public electrode 136, the orientation of liquid crystal molecule 133A.As subsequently by with reference to Figure 11 detailed description that will be described later, the refractive power of each liquid crystal lens row 31 of Control of Voltage applied between the first public electrode 131 and the second public electrode 136.
Will now be described when there is not potential difference between the first public electrode 131 and the second public electrode 136, the orientation of liquid crystal molecule 133A.For the ease of describing, it is considered to the azimuth that X-Z plane is datum level and X-axis is reference axis, and consider that Y-axis is the polar angle of reference axis.The azimuth of the molecular axis (major axis) of liquid crystal molecule 133A is about 0 degree.In other words, the molecular axis of liquid crystal molecule 133A is arranged essentially parallel to X-Y plane orientation.
On the other hand, the absolute value of the polar angle of the molecular axis of liquid crystal molecule 133A, at the two ends that each liquid crystal lens arranges (near distance piece 134 in figure 3, distance piece 134 will be described in subsequently) it is about 0 degree, middle body towards liquid crystal lens row 31 increases, and becomes about 90 degree at the middle body of liquid crystal lens row 31.In other words, such as, liquid crystal lens row 31pIn the left distance piece 134 that figure 3 illustrates of liquid crystal molecule 133A near orient in the Y direction, and along with liquid crystal molecule 133A is near liquid crystal lens row 31pCenter, be tilted to the right in figure 3.Similarly, liquid crystal lens row 31pIn the right septum part 134 that figure 3 illustrates of liquid crystal molecule 133A near orient in the Y direction, and along with liquid crystal molecule 133A is near liquid crystal lens row 31pCenter, be tilted to the left in figure 3.At liquid crystal lens row 31pCenter, liquid crystal lens row 31pIn liquid crystal molecule 133A X-direction orient.
Single liquid crystal lens row 31 correspond essentially to four row pixels 12.Now, reference number LD represents that the horizontal interval between liquid crystal lens row 31, reference number ND represent the horizontal interval between pixel 12.In the case, following formula is met: LD ≈ 4 × ND.Such as, it is 1 × 10 when pixel separation ND2During μm, the interval LD between liquid crystal lens row 31 is about 4 × 102μm.Additionally, the relation between above-mentioned " P " and " M " is P ≈ M/4.
As shown in Figures 2 and 3, distance piece 134 is arranged between first substrate 130A and second substrate 130B.Each distance piece 134 is all disposed within the boundary between adjacent lcd lens arrays 31.Assume that each distance piece 134 has wall-like shape to carry out explained below.Or, each distance piece 134 can have staff-like shape.Distance piece 134 is made up of transparent polymer material.In the first embodiment, the distance piece 134 boundary position between liquid crystal lens row 31 is formed on the second oriented film 135.
Thickness (width of X-direction) e.g. 25 μm of each distance piece 134, and its height (width of Y-direction) e.g. 50 μm.For convenience of description, the aspect ratio of the distance piece shown in accompanying drawing does not reflect above-mentioned value.As in figure 2 it is shown, the peripheral part sealing member 137 of the peripheral part of first substrate 130A and second substrate 130B seals, sealing member is such as made up of epoxylite material, and there is gap between each end and sealing member 137 of wall-like distance piece 134.Specifically, length SL of the distance piece 134 shown in Fig. 2 is arranged so that the end of wall-like distance piece 134 is from sealing member 137 distance of separation D1 and D2.When distance D1 and D2 are configured such that proper manufacture variable lens array 30, liquid crystal material flows smoothly in the space between substrate.This is also applied for other embodiments that will be described later.
Hereinafter with reference to Fig. 4 A to 4C, Fig. 5 A to 5C, Fig. 6 A and 6B and Fig. 7, the method manufacturing variable lens array 30 is described.These accompanying drawings are roughly the same with the sectional view of the line A-A along Fig. 2.In Fig. 5 A to 5C and Fig. 6 A, for convenience of description, the direction of Y-axis has been inverted.It is further assumed that used non-polarized light to carry out the mode align liquid crystal molecules that the oriented film of optical orientation process makes the major axis of liquid crystal molecule be directed at light direction of illumination.
[step 100] (see Fig. 4 A)
By using known method, first substrate 130A forms the first public electrode 131 being such as made up of ITO.Then use known method, the whole surface of the first public electrode 131 is formed the first oriented film 132 being such as made up of light-sensitive polyimide material.
[step 110] (see Fig. 4 B and 4C)
Then the mask 40 with slit-shaped openings 42 is used to perform the optical orientation of the first oriented film 132.
Mask 40 has at the slit-shaped openings 42 of Z-direction extension and the light trap 41 between adjacent apertures 42.Mask 40 can be made by using known method known materials.The interval LD between interval and the liquid crystal lens row 31 shown in Fig. 3 between X-direction upper shed 42 is identical.According to the specification of variable lens array 30, the width of opening 42 each in X-direction can be suitably arranged to preferred value.
Mask 40 is placed as towards the first oriented film 132 and the part corresponding with the border between liquid crystal lens array 31 corresponding with the center of each opening 42.Then with the illumination mask 40 sending from light source (not shown) and propagating in the Y direction, the region corresponding to the first oriented film 132 of opening 42 (indicates reference number AL1) experience optical orientation (see Fig. 4 B).
Then mask 40 is placed as towards the first oriented film 132 and the part corresponding with the middle body between the liquid crystal lens array 31 corresponding to the center of each opening 42.Then with the illumination mask 40 sending from light source (not shown) and propagating the most to the right, it is positioned at region AL1The region AL of first oriented film 132 in left side2Experience optical orientation.Then with the illumination mask 40 sent from light source (not shown) and lower section is propagated the most to the left, it is positioned at region AL1The region AL of first oriented film 132 on right side3Experience optical orientation (see Fig. 4 C).
[step 120] (see Fig. 5 A)
Then by using known method, second substrate 130B forms the second public electrode 136 being such as made up of ITO.Then, by using known method, on the whole surface of the second public electrode 136, the second oriented film 135 being such as made up is formed of light-sensitive polyimide material.
[step 130] (see Fig. 5 B and 5C)
Then aforementioned mask 40 is used to perform the optical orientation of the second oriented film 135.
Mask 40 is placed as towards the second oriented film 135 and the part corresponding with the border between liquid crystal lens array 31 corresponding with the center of each opening 42.Then with the illumination mask 40 sending from light source (not shown) and propagating in the Y direction, the region corresponding to the second oriented film 135 of opening 42 (indicates reference number AL4) experience optical orientation (see Fig. 5 B).
Then with the illumination mask 40 sending from light source (not shown) and propagating the most to the right, it is positioned at region AL4The region AL of second oriented film 135 on right side6Experience optical orientation.Then with the illumination mask 40 sent from light source (not shown) and lower section is propagated the most to the left, it is positioned at region AL4The region AL of second oriented film 135 in left side5Experience optical orientation (see Fig. 5 C).
[step 140] (see Fig. 6 A)
Afterwards, by using known method, use and be properly formed distance piece 134 on the second oriented film 135 in part corresponding to known transparent material border between liquid crystal lens row 31.
[step 150] (see Fig. 6 B and 7)
Then, the first substrate 130A and second substrate 130B that experienced by above-mentioned steps are placed as towards accompanying liquid crystal material, and the peripheral part of hermetic sealing substrate between the other side and they.Which provide variable lens array 30.Fig. 6 B shows the position relationship between the region that experienced by optical orientation.Fig. 7 shows the orientation of liquid crystal molecule 133A.
The operation of variable lens array 30 is described referring next to Fig. 8 to 11.First the operation of the variable lens array 30 of display stereo-picture will be described, then the operation of the variable lens array 30 of display normal image will be described.
Fig. 8 is the schematic sectional view of a part of the display unit of the part of variable lens array and display stereo-picture；Fig. 9 is the perspective schematic view of a part for the part of display unit and variable lens array.
When display device 1 runs, apply identical voltage (such as, 0 volt) to the first public electrode 131 and the second public electrode 136.Owing to there is not potential difference between the first public electrode 131 and the second public electrode 136, the therefore liquid crystal molecule 133A in the first oriented film 132 and the second oriented film 135 oriented liquid crystal layer 133 as shown in Figure 8.
Liquid crystal layer 133 is made up of positivity nematic liquid crystal material.Liquid crystal material is more than the refractive index along its short axle along the refractive index of the major axis of liquid crystal molecule 133A.Additionally, the molecular axis of liquid crystal molecule 133A is oriented substantially parallel to X-Y plane.As a result, when the light from display unit 10 incidence polarizes in X-direction, shown in line chart as shown in Figure 8, the refractive index in liquid crystal layer 133 is less at the periphery of each liquid crystal lens row 31, and increases towards its middle body.Reference number " nS " shown in Fig. 8 and " nL " represent the short axle along liquid crystal molecule 133A and the refractive index of major axis respectively.It should be noted that the line chart shown in Fig. 8 is schematic figures, be not meant to that the maximum of refractive index and minima are typically " nL " and " nS ".This is also applied for the line chart of other accompanying drawings following.
In this case, the wavefront through the light of each liquid crystal lens row 31 is being propagated faster in the part of its middle body at the periphery ratio of liquid crystal lens row 31.Stated differently, since light is propagated in the way of its wavefront converges on a bit, therefore each liquid crystal lens row 31 form the liquid crystal grin lens being used as convex lens.Each banding liquid crystal lens row 31 shown in Fig. 8 are optically equivalent to circular cylindrical projection lens, accordingly act as lens pillar (see figure 9).When the macromolecular material making distance piece 134 is the material with the refractive index roughly the same with the refractive index of the short axle along liquid crystal molecule 133A, it is thus achieved that the line chart of the refractive index shown in Fig. 8 and the line chart of the refractive index of Figure 10 that will be described later.
Penetrate from pixel 12 and form viewpoint A1, A2..., A4The luminous flux of image be redirected when it is through liquid crystal lens row 31, and be directed to predetermined direction.As a result, it is possible to the viewing areas WA that figure 1 illustrates watches the image of predetermined viewpoint.
Figure 10 is the schematic sectional view of a part for the part of the variable lens array showing normal image and display unit.Figure 11 is the perspective schematic view of a part for the part of display unit and variable lens array.
In order to show normal image, apply different voltage (such as 0 volt and 15 volts) to the first public electrode 131 and the second public electrode 136.In practice, in order to drive liquid crystal layer 133, such as, for the polarity of each display frame switching voltage with AC voltage.For the ease of describing, in the case of the polarity inversion not considering voltage, carry out explained below.
In this case, the voltage between the first public electrode 131 and the second public electrode 136 is 15 volts.Therefore between the second public electrode 136 and whole first public electrode 131, form electric field, and liquid crystal molecule 133A is orientated its major axis and extends in the Y direction.
In this case, liquid crystal layer 133 is solely for the transparency carrier (see Figure 11) being made up of the material with refractive index " nS ".Display device 1 runs as being not provided with lens arra, it is allowed to beholder watches normal image.
It is described above the first embodiment.In variable lens array 30, the first public electrode 131 is formed on the whole surface of first substrate 130A, and the second public electrode 136 is formed on the whole surface of second substrate 130B.Therefore, it is not necessary to divide any electrode to the refractive index gradient controlling in liquid crystal layer 133 or to control applied voltage based on electrode group.
Additionally, due to distance piece 134 is arranged in the position that the orientation of liquid crystal molecule 133A is constant when the refractive power of each liquid crystal lens row 31 changes, therefore optical characteristics will not be affected by the difference of the refractive index between distance piece and liquid crystal layer.
In superincumbent description, distance piece 134 is arranged in the boundary between liquid crystal lens row 31, but distance piece 134 is not necessarily arranged so as to.Such as, the border being provided with distance piece 134 and the border being not provided with distance piece 134 can be alternately arranged.This is also applied for other embodiments that will be described later.
In superincumbent description, each distance piece 134 has wall-like shape.Or, each distance piece 134 can have staff-like shape.This is also applied for other embodiments that will be described later.
In the first embodiment, it has been described that the situation that the light from display unit 10 polarizes in X-direction.Or, display unit can be spontaneous light display unit, but, it generally launches non-polarized light.In the case, such as, as shown in figure 12, such as at the optical element 138 of polarizing coating of X-direction polarized light, the back side (there is the side of spontaneous light display unit 10 ') of the second substrate 130B forming variable lens array 30 can be arranged in.This is also applied for other embodiments that will be described later.
[the second embodiment]
The second embodiment according to the disclosure is directed to display device and variable lens array.
In terms of making the specification of distance piece of the type of liquid crystal material of variable lens array and formation variable lens array, the second embodiment is different from the first embodiment.Liquid crystal layer is made up of negativity nematic liquid crystal material, and each distance piece is all disposed within the middle body that the liquid crystal lens of correspondence arranges.Except above-mentioned difference, the second embodiment and the first embodiment have identical configuration.
In the schematic, exploded perspective view of the display device 2 used in this second embodiment, the term " display device 2 " of the term " display device 1 " shown in Fig. 1 replaces, and term " variable lens array 30 " term " variable lens array 230 " replaces.
The configuration of variable lens array 230 will be described with reference to Figure 13 and 14.
Figure 13 is the sectional view of a part for the variable lens array used in the second embodiment.Specifically, Figure 13 is the sectional view of the line A-A along the first embodiment in Fig. 2 of reference, but term " variable lens array 30 " term " variable lens array 230 " replaces.Reference number 233 represents liquid crystal layer, and reference number 233A represents liquid crystal molecule.Figure 13 shows in the case of there is not potential difference between the first public electrode 131 and the second public electrode 136 (in other words, when showing stereo-picture), the orientation of liquid crystal molecule 233A.Figure 14 is the schematic sectional view of a part for the part of the variable lens array showing normal image and display unit.
In variable lens array 230, liquid crystal layer 233 is made up of negativity nematic liquid crystal material, and each distance piece 234 is formed in the middle body of corresponding liquid crystal lens row 31.The method manufacturing variable lens array 230 will be omitted, except above-mentioned difference, its with the first embodiment described in manufacture method identical.
Display stereo-picture variable lens array 230 operation with reference Fig. 8 and 9 the first embodiment described in operation identical.That is, shown in line chart as shown in Figure 13, when the light from display unit 10 incidence polarizes in X-direction, the refractive index in liquid crystal layer 233 is less at the periphery of each liquid crystal lens row 31, and increases towards its middle body.When the macromolecular material making distance piece 234 is the material with the refractive index roughly the same with the refractive index of the major axis along liquid crystal molecule 233A, it is thus achieved that the line chart of the refractive index shown in Figure 13 and 14.
As shown in figure 14, when showing normal image, liquid crystal molecule 233A orients in X-direction.Except above-mentioned difference, the operation described in the operation of the variable lens array 230 of display normal image and first embodiment of reference Figure 10 and 11 is substantially the same.In this second embodiment, liquid crystal layer 233 is solely for the transparency carrier being made up of the material with refractive index " nL ".Display device 2 runs as being not provided with lens arra, it is allowed to beholder watches normal image.
It is described above the second embodiment.In this second embodiment, also need not divide any electrode and to the refractive index gradient controlling in liquid crystal layer 233 or control applied voltage based on electrode group.
Additionally, due to distance piece 234 is arranged in the position that the orientation of liquid crystal molecule 233A is constant when the refractive power of each liquid crystal lens row 31 changes, therefore optical characteristics will not affected by the difference of the refractive index between distance piece and liquid crystal layer.
[the 3rd embodiment]
The 3rd embodiment according to the disclosure is directed to display device and variable lens array.
In terms of the optical orientation performing the first oriented film and the second oriented film, the 3rd embodiment and the first embodiment are different.Except above-mentioned difference, the 3rd embodiment has the configuration identical with the first embodiment.
In the schematic, exploded perspective view of the display device 3 used in the third embodiment, the term " display device 3 " of the term " display device 1 " shown in Fig. 1 replaces, and term " variable lens array 30 " term " variable lens array 330 " replaces.
The configuration of variable lens array 330 will be described with reference to Figure 15 and 16.
Figure 15 is the sectional view of a part for the variable lens array used in the 3rd embodiment.Figure 16 describes the orientation of liquid crystal molecule, and is the schematic plan view of variable lens array in terms of the direction B-B shown in Figure 15.
More specifically, Figure 15 is the cross-sectional view of the line A-A along the first embodiment in Fig. 2 of reference, but term " variable lens array 30 " term " variable lens array 330 " replaces.Reference number 332 represents the first oriented film, and reference number 335 represents the second oriented film.Figure 15 shows in the case of there is not potential difference between the first public electrode 131 and the second public electrode 136 (in other words, when showing stereo-picture), the orientation of liquid crystal molecule 133A.In figure 16, for convenience of description, the parts in addition to liquid crystal molecule 133A and distance piece 134 are eliminated.
The orientation of liquid crystal molecule 133A under the state that there is not potential difference will be described between the first public electrode 131 and the second public electrode 136.As in the first embodiment, it is considered to the azimuth that X-Z plane is datum level and X-axis is reference axis, and consider that Y-axis is the polar angle of reference axis.The polar angle of the molecular axis (major axis) of liquid crystal molecule 133A is about 90 degree.In other words, as shown in figs, the longer axis parallel of liquid crystal molecule 133A orients in X-Z plane.
On the other hand, azimuthal absolute value of the molecular axis of liquid crystal molecule 133A is about 90 degree at the two ends (near distance piece 134 in figure 16) of each liquid crystal lens row 31, middle body towards liquid crystal lens row 31 reduces, and becomes about 0 degree at the middle body of liquid crystal lens row 31.In other words, such as, liquid crystal lens row 31pIn the left distance piece 134 that figure 16 illustrates of liquid crystal molecule 133A near orient in Z-direction, and along with liquid crystal molecule 133A is near liquid crystal lens row 31pCenter, be tilted to the right in figure 16.Similarly, liquid crystal lens row 31pIn the right septum part 134 that figure 16 illustrates of liquid crystal molecule 133A near orient in Z-direction, and along with liquid crystal molecule 133A is near liquid crystal lens row 31pCenter, be tilted to the left in figure 16.Liquid crystal lens row 31pIn liquid crystal molecule 133A at liquid crystal lens row 31pCenter X-direction orient.
As it has been described above, the optical orientation that the first oriented film 332 and the second oriented film 335 have gone through align liquid crystal molecules 133A processes.Specifically, in optical orientation processes, the first oriented film 332 and second oriented film 335 light through mask irradiate, and mask is through the light of the axially polarization of the liquid crystal molecule 133A that figure 16 illustrates.
Display stereo-picture variable lens array 330 operation with reference Fig. 8 and 9 the first embodiment described in operation roughly the same.That is, shown in line chart as shown in Figure 15, when the light from display unit 10 incidence polarizes in X-direction, the refractive index in liquid crystal layer 133 is less at the periphery of each liquid crystal lens row 31, and increases towards its middle body.When the macromolecular material making distance piece 134 is the material with the refractive index roughly the same with the refractive index of the short axle along liquid crystal molecule 133A, it is thus achieved that the line chart of the refractive index shown in Figure 15.
Display normal image variable lens array 330 operation with reference Figure 10 and 11 the first embodiment described in operation identical.Liquid crystal layer 133 is solely for the transparency carrier being made up of the material with refractive index " nS ".Display device 3 runs as being not provided with lens arra, and allows beholder to watch normal image.
Below embodiment of the present disclosure has been specifically described.The disclosure is not limited to above-mentioned embodiment, it is possible to achieve the various deformation of know-why based on the disclosure.
Such as, in the above-described embodiment, distance piece is formed on second substrate 130B, but can also be formed on first substrate 130A.In addition, in the above-described embodiment, oriented film is arranged on each surface in the first substrate 130A and second substrate 130B of liquid crystal layer, but in some cases, oriented film can also be provided only on the surface of a substrate, or can control the directional characteristic of public electrode.Although additionally, depend on the design of variable lens array, but in some cases, pearl distance piece can be distributed in liquid crystal layer.
The disclosure can also be embodied as following configuration.
(1) a kind of display device, including
The display unit of display two dimensional image；And
It is arranged as the variable lens array towards display unit,
Wherein, variable lens array includes having the first substrate of transparent first public electrode, have the second substrate of transparent second public electrode and be arranged between first substrate and second substrate and formed the liquid crystal layer of liquid crystal lens row,
Liquid crystal layer is processed in the following manner: liquid crystal molecule is directed so that when there is not potential difference between the first public electrode and the second public electrode, and each liquid crystal lens row produce refractive power, and
The refractive power of the Control of Voltage each liquid crystal lens row applied between the first public electrode and the second public electrode.
(2) display device described in (1),
Wherein, in order to eliminate the refractive power of each liquid crystal lens row, between the first public electrode and the second public electrode, apply voltage the liquid crystal molecule in liquid crystal layer is oriented on fixed-direction.
(3) display device described in (1) or (2),
Wherein, in at least one in the surface of the surface at the first substrate towards liquid crystal layer and the second substrate towards liquid crystal layer, form oriented film, and oriented film align liquid crystal molecules in the following manner: when there is not potential difference between the first public electrode and the second public electrode, each liquid crystal lens row produce refractive power.
(4) display device described in (3),
Wherein, the directional characteristic of oriented film is controlled by illumination.
(5) display device described in (1) to (4),
Wherein, wall-like or shaft-like distance piece are arranged in the boundary of adjacent lcd lens arrays.
(6) display device described in (5),
Wherein, the peripheral part of the first and second substrates of variable lens array sealing member seals, and
Gap is there is between wall-like or each end and the sealing member of shaft-like distance piece.
(7) display device described in (1) to (4),
Wherein, wall-like or shaft-like distance piece are arranged in the middle body of each liquid crystal lens row.
(8) display device described in (7),
Wherein, the peripheral part of the first and second substrates of variable lens array sealing member seals, and
Gap is there is between wall-like or each end and the sealing member of shaft-like distance piece.
(9) a kind of variable lens array, including:
There is the first substrate of transparent first public electrode；
There is the second substrate of transparent second public electrode；And
The liquid crystal layer being arranged between first substrate and second substrate,
Wherein, liquid crystal layer is processed in the following manner: liquid crystal molecule is directed so that do not execute under alive state between the first public electrode and the second public electrode, and each liquid crystal lens row produce refractive power, and
The refractive power of the Control of Voltage each liquid crystal lens row applied between the first public electrode and the second public electrode.
The application comprises on the June 3rd, 2011 of related subject disclosed in Japanese earlier patent application JP2011-125565 that Japan Office submits to, and entire contents is incorporated herein.
As long as it will be appreciated by those skilled in the art that in the range of appended claims or its equivalent, according to design requirement and other factors, various amendment, combination, sub-portfolio and conversion can be carried out.
Claims (10)
1. a display device, including:
Display unit, shows two dimensional image；And
Variable lens array, is arranged as towards described display unit,
Wherein, described variable lens array includes having the first substrate of transparent first public electrode, have the second substrate of transparent second public electrode and be arranged between described first substrate and described second substrate and formed the liquid crystal layer of liquid crystal lens row,
Described liquid crystal layer is processed as follows: liquid crystal molecule is directed so that when there is not potential difference between described first public electrode and described second public electrode, and each described liquid crystal lens row produce refractive power,
The refractive power of each described liquid crystal lens of the Control of Voltage row applied between described first public electrode and described second public electrode, and
Each described liquid crystal lens row have constant thickness.
Display device the most according to claim 1,
Wherein, in order to eliminate the refractive power of each described liquid crystal lens row, between described first public electrode and described second public electrode, apply voltage so that the described liquid crystal molecule in described liquid crystal layer orients on fixed-direction.
Display device the most according to claim 1,
Wherein, oriented film is formed at least one in the surface of the surface at the described first substrate towards described liquid crystal layer and the described second substrate towards described liquid crystal layer, and described oriented film orients described liquid crystal molecule as follows: when there is not potential difference between described first public electrode and described second public electrode, each described liquid crystal lens row produce refractive power.
Display device the most according to claim 3,
Wherein, the directional characteristic of described oriented film is controlled by illumination.
Display device the most according to claim 1,
Wherein, the boundary in adjacent lcd lens arrays is disposed with wall-like or shaft-like distance piece.
Display device the most according to claim 5,
Wherein, the described first substrate of described variable lens array and the peripheral part sealing member of described second substrate seal, and
Gap is there is between each end and described sealing member of described wall-like or shaft-like distance piece.
Display device the most according to claim 1,
Wherein, it is disposed with wall-like or shaft-like distance piece at the middle body of liquid crystal lens row each described.
Display device the most according to claim 7,
Wherein, the described first substrate of described variable lens array and the peripheral part sealing member of described second substrate seal, and
Gap is there is between each end and described sealing member of described wall-like or shaft-like distance piece.
Display device the most according to claim 1,
Wherein, the boundary in the adjacent lcd lens arrays of a part is disposed with wall-like or shaft-like distance piece, and the border being provided with described distance piece is alternately arranged with the border being not provided with described distance piece.
10. a variable lens array, including:
First substrate, has transparent first public electrode；
Second substrate, has transparent second public electrode；And
Liquid crystal layer, is arranged between described first substrate and described second substrate,
Wherein, described liquid crystal layer is processed as follows: liquid crystal molecule is directed so that do not execute between described first public electrode and described second public electrode under alive state, and each liquid crystal lens row produce refractive power,
The refractive power of each described liquid crystal lens of the Control of Voltage row applied between described first public electrode and described second public electrode, and
Each described liquid crystal lens row have constant thickness.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011125565A JP5701690B2 (en) | 2011-06-03 | 2011-06-03 | Display device |
| JP2011-125565 | 2011-06-03 |
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| CN102809840A CN102809840A (en) | 2012-12-05 |
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| US (1) | US9091859B2 (en) |
| JP (1) | JP5701690B2 (en) |
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| TW200720703A (en) * | 2005-09-09 | 2007-06-01 | Koninkl Philips Electronics Nv | Lenticular device for an autostereoscopic display apparatus and method of producing the same |
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| CN106154683A (en) * | 2016-08-31 | 2016-11-23 | 京东方科技集团股份有限公司 | A kind of liquid crystal prism and preparation method thereof, display device |
Also Published As
| Publication number | Publication date |
|---|---|
| US9091859B2 (en) | 2015-07-28 |
| JP2012252220A (en) | 2012-12-20 |
| US20120307169A1 (en) | 2012-12-06 |
| JP5701690B2 (en) | 2015-04-15 |
| CN102809840A (en) | 2012-12-05 |
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